I have a 93 Nissan Sentra that will not start in the mornings as the battery will be totally discharged. The car starts easily when I jump the battery to another vehicle, and the battery charges reasonably well if I let the car run for a half hour or so. But if I leave the car off for more than a few hours (such as overnight) the battery is again discharged and I need another jump.
This car is on its last legs and I do not want to spend the $300 it will take to install a new alternator, but a new battery might make sense if that is in fact the problem.
Based on this information is it possible to determine whether the fault is in the battery or is it still possibly a faulty alternator?
ps when I turn the car off there are no lights left on to drain the battery that I know of.